Boyd, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12 °C (low) to 24.8 °C (high). Annual precipitation averages 938.8 Millimeters. Boyd is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.5 °C | 13.6 °C | 53.34 mm |
| February | 2.8 °C | 15.6 °C | 62.48 mm |
| March | 6.9 °C | 20.2 °C | 80.77 mm |
| April | 11.1 °C | 24.3 °C | 78.23 mm |
| May | 16.7 °C | 28.2 °C | 114.81 mm |
| June | 21.2 °C | 33.2 °C | 108.46 mm |
| July | 23.1 °C | 35.1 °C | 56.39 mm |
| August | 22.8 °C | 35.7 °C | 62.48 mm |
| September | 18.6 °C | 31.7 °C | 87.63 mm |
| October | 12.1 °C | 25.8 °C | 106.43 mm |
| November | 6.6 °C | 19.3 °C | 65.28 mm |
| December | 1.7 °C | 14.3 °C | 62.48 mm |
| Annual | 12 °C | 24.8 °C | 938.78 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |